Control of Nitrogen Levels in Trees

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From an energy standpoint, uptake and reduction of nitrates with incorporation into an organic framework is one of the most expensive tasks a tree performs. It would hardly be worthwhile if useable nitrogen in the environment was not at a premium.

The link address is: http://warnell.forestry.uga.edu/service/library/index.php3?docID=281&docHistory%5B%5D=12&docHistory%5B%5D=31

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